Graphene Synthesis by Plasma-Enhanced CVD Growth with Ethanol

Teresa Campo,María Cotto,Carmen Morant,Francisco Márquez,Eduardo Elizalde

doi:10.3844/ajeassp.2016.574.583

Abstract

This work was supported by the Spanish Education and Research Ministry (MEC) under Grant MAT2010- 19804 and from Ministerio de Economia y Competitividad (MINECO) of Spain, through the grant ENE2014-57977-C2-1-R. Financial support from the U.S. Department of Energy, through the Massie Chair Project at Turabo University and from the U.S. Department of Defense under Grant W911NF-14-1- 0046, are also acknowledged

Highlights

The science of carbon materials is in continuous progress, being one of the most active and multidisciplinary areas of Science
The exceptional properties of graphene are a consequence of the continuous network of hexagonally arranged sp2-bonded carbon atoms in a 2D-structure
The existence of the D band in the range of 13621367 cm−1 indicates a certain density of defects present in the as-grown material. It can be explained by the Polymethyl methacrylate (PMMA) transfer process of the graphene to the silicon substrate, which increases the defect amount of the graphene sample

Summary

Introduction

The science of carbon materials is in continuous progress, being one of the most active and multidisciplinary areas of Science. This procedure consists of several steps: (a) Deposition of 3 mL of Polymethyl methacrylate (PMMA) by spin-coating at 3000 rpm on the copper substrate covered with graphene; (b) The curing process of PMMA is performed in an oven at 120°C for 2 min; (c) the PMMA/sample is cooled down to room temperature and subsequently placed inside a Fe(NO3)3 [0.1 g mL−1] etching solution for 12 h; (d) after that period of time, the PMMA/graphene is separated from copper substrate and it can be clearly observed floating on the liquid surface; (e) PMMA/graphene assembly is cleaned with deionized water and deposited on the chosen support; (f) a small drop of PMMA is added on the assembly to eliminate the stress that may have occurred in the graphene during the transfer process; and (g) this droplet of PMMA is dried for 30 min in air and the polymer is removed with acetone, leaving the graphene on the support and completing the transfer process. The FT-IR spectra were measured by using a FTIR Bruker IFS66v spectrometer, in specular reflectance mode, using an attenuated total reflection accessory

Results and Discussion

Conclusion

Funding Information